From Wiktionary, the free dictionary
Aethusa
- A taxonomic genus within the family Apiaceae – fool's parsley, fool's cicely, poison parsley.
Ancient Greek Αἵθουσα (Haíthousa)
Aethusa
- (Greek mythology) A daughter of Poseidon and the Pleiad Alcyone, daughter of Atlas. She was loved by Apollo and bore to him Eleuther and Linus.